20308910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1201}}^1$

素因数の和:1316

約数の個数: 32

約数和(自身を含む): 38944800

約数和(自身を除く): 18635890

約数列:

[1, 2, 5, 10, 19, 38, 89, 95, 178, 190, 445, 890, 1201, 1691, 2402, 3382, 6005, 8455, 12010, 16910, 22819, 45638, 106889, 114095, 213778, 228190, 534445, 1068890, 2030891, 4061782, 10154455, 20308910]

約数ペア:

[(1, 20308910), (2, 10154455), (5, 4061782), (10, 2030891), (19, 1068890), (38, 534445), (89, 228190), (95, 213778), (178, 114095), (190, 106889), (445, 45638), (890, 22819), (1201, 16910), (1691, 12010), (2402, 8455), (3382, 6005)]